Clinical biochemistry laboratory rejection rates due to various types of preanalytical errors.

Introduction: Preanalytical errors, along the process from the beginning of test requests to the admissions of the specimens to the laboratory, cause the rejection of samples. The aim of this study was to better explain the reasons of rejected samples, regarding to their rates in certain test groups in our laboratory.

Materials And Methods: This preliminary study was designed on the rejected samples in one-year period, based on the rates and types of inappropriateness.